<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>生成一个4行3列的表格</title>
</head>
<body>
    <table border="1px">
        <tr>
            <td>(1,1)</td>
            <td>(1.2)</td>
            <td>(1,2)</td>
        </tr>
        <tr>
            <td>(2,1)</td>
            <td>(2.2)</td>
            <td>(2,2)</td>
        </tr>
        <tr>
            <td>(3,1)</td>
            <td>(3.2)</td>
            <td>(3,2)</td>
        </tr>
        <tr>
            <td>(4,1)</td>
            <td>(4.2)</td>
            <td>(4,2)</td>
        </tr>
    </table>
</body>
</html>